Abstract
Isotopic compositions of organic (δ13C-Corg) and carbonate (δ13C-Ccarb) carbon were analyzed in the particulate matter (hereafter, particulates) and sediments from the North and Middle Caspian basins. Isotopic composition of Corg was used for assessing proportions of the allochthonous and autochthonous organic matter in the particulates. Difference between the δ13C-Corg values in surface sediments and particulates is explained by the aerobic and anaerobic diagenetic transformations. Isotopic composition of Corg in sediments may be used as a tool for reconstructing the Quaternary transgressive-regressive history of the Caspian Sea.
Similar content being viewed by others
References
Galimov, E.M., Geokhimiya stabil’nykh izotopov ugleroda (Geochemistry of Stable Carbon Isotopes), Moscow: Nedra, 1968.
Jakobsson, M., Grantz, A., Kristoffersen, Y., and Maknab, R., The Arctic Ocean: Boundary Conditions and Background Information, in The Organic Carbon Cycle in the Arctic Ocean, Stein, R. and Macdonald, R.W.N.Y., Eds., New York: Springer, 2004, pp. 1–32.
Kholodov, V.N., Khrustalev, Yu.P., Lubchenko, I.Yu., et al., Kaspiiskoe more: problemy sedimentogeneza (The Caspian Sea: Problems of Sedimentogenesis), Kholodov, V.N. and Lisitsyna, N.A., Eds., Moscow: Nauka, 1989.
Klyuvitkin, A.A., Kravchishina, M.D., and Novigatskii, A.N., Micro- and Nanoparticles in the Caspian Water Pile: Distribution, Composition, and Fluxes (Based on Materials of Cruise 29 of the R/V Rift (November 2008), in Geologiya morei i okeanov (Geology of Seas and Oceans), Moscow: GEOS, 2009, vol. 3, pp. 302–307.
Lavrushin, V.Yu. and Kuleshov, V.N., Oolites of the Caspian Sea (Regularities of Distribution and Isotopic-Geochemical Features), Lithol. Miner. Resour., 1999, no. 6, pp. 585–613.
Lein, A.Yu., Rusanov, I.I., Klyuvitkin, A.A., et al., Biogeochemical Processes in the Caspian Water Pile in November 2008, Dokl. Earth Sci., 2010a, vol. 434, no. 6, pp. 763–767.
Lein, A.Yu., Rusanov, I.I., Zakharova, E.E., et al., Biogeochemical Processes of Carbon and Sulfur Cycles in Sediments on the Outer Shelf of the Russian Black Sea Sector, Dokl. Earth Sci., 2010b, vol. 432, no. 3, pp. 372–374.
Sedletskii, V.I. and Baikov, A.A., Nature of Fluctuations of the Caspian Sea Level, Lithol. Miner. Resour., 1997, no. 3, pp. 240–248.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.Yu. Lein, I.I. Rusanov, M.D. Kravchishina, M.V. Ivanov, 2012, published in Litologiya i Poleznye Iskopaemye, 2012, No. 4, pp. 319–332.
Rights and permissions
About this article
Cite this article
Lein, A.Y., Rusanov, I.I., Kravchishina, M.D. et al. Genesis of organic and carbonate carbon in sediments of the North and Middle Caspian basins inferred from the isotope data. Lithol Miner Resour 47, 281–293 (2012). https://doi.org/10.1134/S0024490212040050
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0024490212040050